A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 655
t of the screen RV.By using a narrow slit, a good spectrum may be obtained. It willbe noticed that this is exactly the arrangement of the spectrometer(Fig. 580), with the exception that the real images fall upon a screeninstead of being observed by means of the eyepiece E. By rotatingthe prism into… … Fig. 585.—Arrangement for producing a pure spectrum. spectrum of this light from the sodium flame will be seen to consistof one yellow line only, unless the dispersion is very great, and there-fore it is commonly used in optical work where homogeneous lightis required. Expt. 145.—Refractive index…
Physics
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